What were you trying to do that didn't work?

The debuginfo packages are provided by the rhel-8-for-x86_64-appstream-debug-rpms repository.
If either the rhel-8-for-x86_64-appstream-rpms or the rhel-8-for-x86_64-appstream-debug-rpms repository is enabled by itself, httpd-debuginfo cannot be found.
However, it becomes available when both are enabled.

What is the impact of this issue to you?

The specified package could not be downloaded.

Please provide the package NVR for which the bug is seen:

How reproducible is this bug?:

Steps to reproduce

1. Register the RHEL8 by subscription-manager.
2. # dnf list --showduplicate  httpd-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-debug-rpms

Expected results

No packages are displayed.

Actual results

All httpd-debuginfo packages are displayed.

Details

Environment: RHEL 8.10 (Latest version)

The debuginfo packages are provided by the rhel-8-for-x86_64-appstream-debug-rpms repository. If either the rhel-8-for-x86_64-appstream-rpms or the rhel-8-for-x86_64-appstream-debug-rpms repository is enabled by itself, httpd-debuginfo cannot be found. However, it becomes available when both are enabled.

When only the appstream debug repository is enabled, the debuginfo package is not found.

~~~

[root@rhel810 ~]# dnf list --showduplicate httpd-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-debug-rpms
Updating Subscription Management repositories.

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.

Last metadata expiration check: 0:03:23 ago on Thu 04 Sep 2025 10:57:20 AM JST.
Error: No matching Packages to list
[root@rhel810 ~]# 

~~~

When only the appstream repository is enabled, the debuginfo package is not found, which is expected behavior.

~~~

[root@rhel810 ~]# dnf list --showduplicate httpd-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-rpms
Updating Subscription Management repositories.

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.

Last metadata expiration check: 0:03:12 ago on Thu 04 Sep 2025 10:57:43 AM JST.
Error: No matching Packages to list
[root@rhel810 ~]# 

~~~

It becomes available when both repositories are enabled.

~~~

[root@rhel810 ~]# dnf list --showduplicate httpd-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-debug-rpms --enablerepo=rhel-8-for-x86_64-appstream-rpms
Updating Subscription Management repositories.

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.

Last metadata expiration check: 0:03:25 ago on Thu 04 Sep 2025 10:57:43 AM JST.
Available Packages
httpd-debuginfo.x86_64          2.4.37-11.module+el8.0.0+2969+90015743          rhel-8-for-x86_64-appstream-debug-rpms
httpd-debuginfo.x86_64          2.4.37-12.module+el8.0.0+4096+eb40e6da          rhel-8-for-x86_64-appstream-debug-rpms
httpd-debuginfo.x86_64          2.4.37-16.module+el8.1.0+4134+e6bad0ed          rhel-8-for-x86_64-appstream-debug-rpms
httpd-debuginfo.x86_64          2.4.37-21.module+el8.2.0+5008+cca404a3          rhel-8-for-x86_64-appstream-debug-rpms
[root@rhel810 ~]# 

~~~

For the RHEL 8.8 EUS repository, only one package is available if only rhel-8-for-x86_64-appstream-eus-debug-rpms is enabled.

~~~
[root@rhel810 ~]# dnf list --showduplicate --releasever=8.8 httpd-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-eus-debug-rpms 
Updating Subscription Management repositories.

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.

Last metadata expiration check: 0:56:55 ago on Thu 04 Sep 2025 10:07:38 AM JST.
Available Packages
httpd-debuginfo.x86_64        2.4.37-21.module+el8.2.0+14532+bd4c0f23.4        rhel-8-for-x86_64-appstream-eus-debug-rpms
[root@rhel810 ~]# 
~~~

All versions become available when both rhel-8-for-x86_64-appstream-eus-rpms and rhel-8-for-x86_64-appstream-eus-debug-rpms are enabled.

~~~
[root@rhel810 ~]# dnf list --showduplicate --releasever=8.8 httpd-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-eus-rpms --enablerepo=rhel-8-for-x86_64-appstream-eus-debug-rpms
Updating Subscription Management repositories.

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.

Last metadata expiration check: 0:57:05 ago on Thu 04 Sep 2025 10:07:55 AM JST.
Available Packages
httpd-debuginfo.x86_64        2.4.37-11.module+el8.0.0+2969+90015743          rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-12.module+el8.0.0+4096+eb40e6da          rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-16.module+el8.1.0+4134+e6bad0ed          rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-21.module+el8.2.0+5008+cca404a3          rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-21.module+el8.2.0+12904+53ee7aba.1       rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-21.module+el8.2.0+13087+71f69c14.2       rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-21.module+el8.2.0+13808+dea277df.3       rhel-8-for-x86_64-appstream-eus-debug-rpms
httpd-debuginfo.x86_64        2.4.37-21.module+el8.2.0+14532+bd4c0f23.4       rhel-8-for-x86_64-appstream-eus-debug-rpms
[root@rhel810 ~]# 
~~~

The situation varies depending on the package. For squid, enabling both the rhel-8-for-x86_64-appstream-eus-debug-rpms and rhel-8-for-x86_64-appstream-eus-rpms repositories results in one fewer available package.

~~~
[root@rhel810 ~]# dnf list --showduplicate --releasever=8.8 squid-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-eus-debug-rpms
Updating Subscription Management repositories.
Last metadata expiration check: 3:56:16 ago on Thu 04 Sep 2025 10:07:38 AM JST.
Available Packages
squid-debuginfo.x86_64               7:4.4-4.module+el8+2479+dae5d0d3                     rhel-8-for-x86_64-appstream-eus-debug-rpms    <==
squid-debuginfo.x86_64               7:4.4-5.module+el8.0.0+4045+70edde92                 rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.1.0+4044+36416a77                 rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+6449+6ba3df3e.1               rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+7834+b8ecaeef.2               rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+10583+6e4ac934.3              rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+15803+1b4cda03.4              rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+16757+26d6b59c.5              rhel-8-for-x86_64-appstream-eus-debug-rpms
[root@rhel810 ~]# 

[root@rhel810 ~]# dnf list --showduplicate --releasever=8.8 squid-debuginfo --disablerepo=* --enablerepo=rhel-8-for-x86_64-appstream-eus-debug-rpms --enablerepo=rhel-8-for-x86_64-appstream-eus-rpms
Updating Subscription Management repositories.
Last metadata expiration check: 3:56:21 ago on Thu 04 Sep 2025 10:07:55 AM JST.
Available Packages
squid-debuginfo.x86_64               7:4.4-5.module+el8.0.0+4045+70edde92                 rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.1.0+4044+36416a77                 rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+6449+6ba3df3e.1               rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+7834+b8ecaeef.2               rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+10583+6e4ac934.3              rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+15803+1b4cda03.4              rhel-8-for-x86_64-appstream-eus-debug-rpms
squid-debuginfo.x86_64               7:4.4-8.module+el8.2.0+16757+26d6b59c.5              rhel-8-for-x86_64-appstream-eus-debug-rpms
[root@rhel810 ~]#
~~~